County banking markets / MN / 27109
OlmstedMinnesota
FIPS 27109. Branch offices reported to the FDIC Summary of Deposits, June 30 of each survey year, 1994–2025. One of 87 counties in Minnesota’s 2025 survey.
Concentration, 1994–2025
Branch-count HHI squares each institution’s share of the county’s branch offices; deposit HHI squares its share of county deposits. The bands are the 2010 Horizontal Merger Guidelines classification, the dashed line the 1,800 level above which the Federal Reserve reviews a merger centrally. In 2025 this market is unconcentrated on branches (690) and unconcentrated on deposits (1,378).
Source: FDIC Summary of Deposits | DOJ & FTC, Horizontal Merger Guidelines (2010), section 5.3 | Federal Reserve, Competitive Effects of Mergers and Acquisitions FAQs Both indices computed from the SOD branch rows for this county, June 30 of each survey year. Neither is the Fed's screen HHI: no thrift weighting, no exclusion of specialty and internet banks, no central-booking adjustment. Methodology
Branches and institutions
31 branch offices and 12 institutions in 1994; 46 and 19 in 2025. Deposits booked in the county went from $945.5M to $5.44B, nominal.
Source: FDIC Summary of Deposits FDIC Summary of Deposits, June 30 of each survey year, 1994-2025. Methodology
Who holds the deposits, 2025
Every institution with a branch in the county, ranked by deposits booked here. Both shares are shown because they are the two indices above: squaring and summing the deposit column gives the deposit HHI, the branch column the branch-count HHI.
| # | Institution | Deposits | Deposit share | Branches | Branch share |
|---|---|---|---|---|---|
| 1 | Think Mutual Bank cert 58536 | $1.52B | 27.89% | 6 | 13.04% |
| 2 | Wells Fargo Bank, National Association cert 3511 | $982.4M | 18.07% | 4 | 8.70% |
| 3 | U.S. Bank National Association cert 6548 | $523.9M | 9.63% | 3 | 6.52% |
| 4 | Alerus Financial, National Association cert 3931 | $369.4M | 6.79% | 4 | 8.70% |
| 5 | Old National Bank cert 3832 | $285.3M | 5.25% | 3 | 6.52% |
| 6 | Premier Bank Minnesota cert 33204 | $270.2M | 4.97% | 4 | 8.70% |
| 7 | West Bank cert 15614 | $222.7M | 4.10% | 1 | 2.17% |
| 8 | Associated Bank, National Association cert 5296 | $215.8M | 3.97% | 3 | 6.52% |
| 9 | Eagle Rock Bank cert 34171 | $213.2M | 3.92% | 2 | 4.35% |
| 10 | Sterling State Bank cert 17863 | $206.4M | 3.80% | 2 | 4.35% |
| 11 | Merchants Bank, National Association cert 8866 | $144.1M | 2.65% | 2 | 4.35% |
| 12 | First Security Bank cert 9728 | $113.6M | 2.09% | 1 | 2.17% |
| 13 | F & M Community Bank, National Association cert 10967 | $108.0M | 1.99% | 2 | 4.35% |
| 14 | Foresight Bank cert 5229 | $94.3M | 1.73% | 2 | 4.35% |
| 15 | Minnwest Bank cert 16958 | $54.1M | 1.00% | 3 | 6.52% |
| 16 | First Farmers & Merchants State Bank of Grand Meadow cert 15621 | $35.4M | 0.65% | 1 | 2.17% |
| 17 | Manufacturers Bank & Trust Company cert 16307 | $34.7M | 0.64% | 1 | 2.17% |
| 18 | Coulee Bank cert 18361 | $32.2M | 0.59% | 1 | 2.17% |
| 19 | Minnesota First Credit and Savings, Incorporated cert 26755 | $15.5M | 0.29% | 1 | 2.17% |
Source: FDIC Summary of Deposits June 30, 2025. Branch rows grouped by FDIC certificate; names as reported to the survey. Deposit share is n/a where the county's total SOD deposits are zero. Methodology
Back to county banking markets, up to Minnesota, or read the methodology for the two HHI constructions and what they cannot tell you.